Work like you don't need the money, dance like nobody's watching and love like you've never been hurt. 

It always seems impossible until it's done.

There is no talent here. There is hard work and obsession. You could be anyone if you put in the time.

Practice like you’ve never won. Perform like you’ve never lost.

Everything that happens was once a dream.

Don’t be afraid to work hard and find out how good you can really be.

Don't expect to be good at maths or understand things straight away. Be patient and persistent. Rome wasn't built in a day, but they worked on it every single day. 

Failure to prepare = preparing to fail

Work ethic is important, because, unlike intelligence, athleticism, or charisma, or any natural attribute, it’s a choice.

Whenever you find yourself doubting how far you can go, just remember how far you have come.

The bad news is time flies, the good new is that you're the pilot.

Hard work beats talent when talent doesn't work hard.

Pure mathematics is in its way, the poetry of logical ideas.

Try and do one thing each day that you would really rather not do.

Twenty years from now you will be more disappointed by the things you didn’t do than the things you did do